###
               ## #..#
               #.#..# 
            #####..#  
           ##..zzz.# #
##.   #    #..#..###.#
#..# ## ####.zz###..# 
.... .#... ###.##..#  
##.. .. # ....z... #  
 ....##...##...#####  
## ........##..#..#   
. ..............#     
#  .............#     
................#     
  ..............#     
. ....... ......#     
..........#... .#     
.............. ...    
# ..........#..#..#   
#.... .... .......#   
≈...............###   
 ...... . ......#     
≈.. ......  ...       
.... ... . ... .      
#........  ..  .      
  ... ... . .